diff --git a/mne_demos.ipynb b/mne_demos.ipynb
index 9f2aeb1..bfe53db 100644
--- a/mne_demos.ipynb
+++ b/mne_demos.ipynb
@@ -1333,7 +1333,7 @@
     }
    },
    "source": [
-    "### Looks average all epochs to denoise"
+    "### Let's average all epochs to denoise"
    ]
   },
   {
@@ -1855,6 +1855,8 @@
   {
    "cell_type": "markdown",
    "metadata": {
+    "deletable": true,
+    "editable": true,
     "slideshow": {
      "slide_type": "slide"
     }